Observation of Galilean Moons8 January 1610
Independently observes Jupiter's four large moons at about the same time as Galileo.
Historical person
Historical biography and chronological timeline for Simon Marius, based on 2 World History Database records associated with Germany.
Independently observes Jupiter's four large moons at about the same time as Galileo.
Observes M31 through a telescope and describes its pale central glow, providing the first known telescopic account of the Andromeda object.
Astronomer
This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.